Multiple embroidering-machine.



PATENTED SEPT. 18, 1906.

C. PARMER. MULTIPLE EMBROIDERING MACHINE.

AiPLIOATION FILED SEPT. 29, 1904 5 SHEETS-SHEET l.

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PATENTED SEPT. 18, 1906. U. FARMER. MULTIPLE EMBROIDERING MAOHI APPLIUATION' FILED SEPT. 29, 1904.

5 SHEETS-SHEET 2.

PATBNTED SEPT.-18, 1906.

0. FARMER. MULTIPLE EMBROIDERING MAGHINE.

APPLIOATION FILED SEPT. 28, 1904.

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No. 831,046. PATENT-ED SEPT. 18, 1906.

' 0. FARMER.

MULTIPLE EMBROIDERING MACHINE.

APPLICATION FILED snrrza, i904.

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Specification of Letters Patent;

Patented Sept. 18, 1906 Application filed eptember 29, 1904. Serial No. 226,541.

To ail whom it may concern Be it known that LCHARLES FARMER, a subject of the King of Great Britain, and a resident of Nottingham, England,-have invented certain new and useful Improvenu nts in or Relating to Multiple Embrpideringdilecnines, of which the following is a specification.

This invention relates to multiple-shuttle 8171i)t'OlClPI'lHg-IlliiUhiHSS, and refers more particularly to improved means for putting a; certain PIUPUPUOJ of the needles out of action and bringing them into action again as sutured or for changing'the needles in action to; others which have heon'put out of action, according to the nature and requirements of the work in hand."

ling, the hoodle-thrcadtensiou device.

it also refers to an imnroved needletlnoz1d tension device which will permit of the above changes being made.

Referring to the drawings, Figure 1 is a plan, and Fig. 2 a scctional'side elevation, showing needle operating and threadd-ension mechanism of an embroidi'ring-machine constructed according to myinvention. Fig. 3 s a front. elevation showing the means for longitudinally adjusting the needle-driving oar. 4 is a view showing thrcam for actuating the needles. Fig. 5 is :1 front ele vation showing the mechanism for control- Fl t. 6 is a side clovatioa, and. Fig. 7 a sectional elevation, of the driving-liar.

Like letters indicate like parts throughout the drawings.

According to this invention each needle A (see 1 andQ) is carried by an independent needle-bar A, and the latter are carried in front and back hearings formed in fixed longitudinal hearing-bars B, carried by brackets secured to the front rail Got the machine. The-needle-hars' A are situated at right angles to the embroid'dry-framc (which is not shown) and are moved longitudinally in their hearings to and from the said frame by the following arrangement:

Preferably at a point between the l)*.:tll11g- -hars B described each needle oar A is provided ongits under side with two transverse openings A A (see Fig. 2) and the u per edge of what may he termed a longitu inal driving-bar D normally engages in the o ening, A of each needle-bar and actuates tne whole of them. This long tudinal driv' ing-bar' D is connected to the ,plungers D which are ordinarilyused for carrying and reciprocating a longitudinal needle-bar in machinesof ordinary construction, and the driving-bar D is thus reciprocated in the some manner, and by reason of its upper ed e engaging in the transverse openings 2 of theneedle-bar. A the requisite movement is imparted to the latter. The driving-bar D is not directly attached to the plungers D but is mounted in guideways D, formed in brack.- ets D secured to said plungers, and those guideways are disposed, as shown, so that the driving-har D can be moved longitudinally. The upper edge of the driving-bar D is also at certain points cutaway, lcavin gaps or openings D, (sceFigLfiJ and when cya longitudinal movement of the bar D certain of these ga s D are caused to register with certail) of t to needle-bars A the latter are disconnected from the bar D and remain stationary. The upper edge of the driving-bar D may, for exampldhe cutin the same manner as that shown in Fig.6, which is set out according to the following system A space equal to one-fourth of the dist ance between the needles is taken as the unit of the longitudinal movement of the driving bar D, while the gaps i 4 in said har'and the space between them are alsoequal in length to either one, two, three, or more of these "nits and are so disposed as to give the following result: When the driving-har 'D is in its normal position, as shown in Figs. 1 and 6, it engages with the whole of the needlebars A, and if it be moved to the left four or eight units it will in each case again engage the whole of the needle-bars A. If the bar D is, however, moved to the left one or five units, it will engage every other ncecHe-har only; but in the first case it will engage the odd-numbered ones-and in the second. case the even-numbered ones. If the bar D is moved two, six, 0i ten units to the left, it will engage every third needle-bar: hut in each case the needle-bars engaged wil be different. If the "bar D is "moved three,

seven, or eleven units to the left, it will only peats of the part shown, the repeat occurring every twelve needle-bars.

In addition to the reciprocating drivingbar Ddescribed,;.a lockingrbar-E (seeiFigs. 1 and 2) of similar construction to the drivingbar D, but not-capable of reciprocating with the said her D, is employed to lock and hold those needle-bars-A which are for the time being disengaged from the driving-bar D and are thus putout of action, This locking-bar E is situated at the back of the driving-bar D and is'carried in fixed 'guideways- E, formed in the back bearing-bar B, previously described, so that it can be moved lon,

gitudinally when desired. This locking-bar E is adapted to engage'in. the second opening A in each of the needle-bars A, and its upper edge is cut or provided with gaps E ,-d1sposed inversely to those in the driving-bar D, as shown, so that when it is moved longionly connected to it at the times change is to be made, so that both are moved the requisite distance at one operation.- In this case the needle cam that is, the box -cam F (shown in Fig. 4)used for operating the driving-bar D is cut away or formed with'a depression at F, so that'after the needles have been withdrawn by the action of this cam to the usual extent requiredin ordinary. working the driving-bar D may, together with the needle-bars A, be withdrawn or moved rearward a farther short distance, the antifriction-roller used in connection with the cam entering the depression at F inthe cam F and permitting of this movement. This movement brings the driving-bar D close up to the lockingrbar E, and pins or studs D (see Fig. 1) on the back of the former then enter corresponding openings E in the locking-bar E and for the time being locks the two bars together. The same movement also causes the openings A in the nee-' die-bars A to register with the locking-bar E. Any desired change in the needles in o eration may now be made by moving both bare longitudinally, as previously described, when the driving-bar D may be returned to its normal or working position again, together with those needle-barsA which are still connected to it, while those needle-bars A which are disconnected will be held by the locking-bar E in the same position in which the change was effected. l

static fin order to conveniently move the bars D rotatethe said pinion G, and thus move the bar E, together with the bar D, when it is connected to E, longitudinally in either direction.

' The inner bearing-bracket G is provided with a art G which formsa guide for the end of t e toothed rack E and said art ma be provided with a hole and the rec r E wit a series of holes the requisite distance apart, so that a pin Gr may be inserted in the hole in the part G and one of those-in the rack E when the latter has been moved the required distance. This assists the operator in longitudinally adjusting the bars D and E, as it acts as an index and also prevents accidental displacement.

The hereinbefore described rearward move ment of the driving-bar D and needle-bars A may needle-threads of those needles which are put ,out -of action and prevent them from being withdrawn from the eyes of the needles. For this pur ose each needle-thread may be carried un er the inner end of a spring A, (see vFigs. l and 2,) secured to the corresponding needle-barA, and when moved rearward, as

described, the needle-threads A are each trapped under the end of this spring A and ,the to of the front bearing-bar B and'are thus in eac case held by said spring until the needle-bar is returned to its normal or working positionv again. With the arrangement described the needles in operation may be expeditiously changed from time to time as the Work proceeds, While the two bars D and E may be cut or the gaps D distributed so as to give any change or series of changes in the needles in operation which may be required for the particular class of work in hand. As

certain of the needles are at times out of operation it is obvious that a common tensionroller over which the whole of the needlethreads are carried is in this case inappiicable. In order to obviate this difiiculty, independent needle-thread-locking devices are -pro-' vided in connection with each needle in conjunction with a bar common to all the threads to draw the thread 0d the cbps, as required. The several parts of this thread-tension are; preferably arranged as follows:

In connection with each needle-thread a there is a fixed bracket or abutment H, (see Figs. 1, 2, and 3,) the whole of which are seried through openings in these abutments H wheel G by means of w 'ch the operator can be utilized to trap and hold the v I 2351mm;

is a longitudinal bar J. On the left of each abutment H is a pair of thread-locking disks H", and on the right is a second pair l' f, each of which is normally holdup to itsabutment by, say, a spiral spring H", situated between the said disks and an intermediate arm J, secured on thebar J The locking-disks H and springs H are mounted on short pins Hi, (see Fig; 2,) which are dropped in between the abutinents H, the sides of the latter being recessed to receive the ends of the same. The springs H are adjusted so as to put a slight pressure on both sets of locking-disks H ll when the arms J are in' their intermediate positions, as shown, while the bar J is reciprocated longitudinally by a cam and suitable connections, so as to move the arms J toward one or the other of the abutments H on either side of them, so as to put a heavy pressure first on the disks H on the left of the abutnients H and then on those, H, on the, right alternately, while, on the contrary, the

pressure is alto ether releasedjon the reverse side to which t 1e heavy pressure is applied.

Each needle-thread a is carried from its cop T (see Figs. 1 and 2) to the pair of lookingdisks H on, say, the left of the abutment H, (shown more clearly in Fig. 1,) then over-a thread-bar K common to all the threads carried by arms K on a rocking shaft K, and

from this point back to the pair of lockingdisks'ld" on the rightof said abutment and from thence to the, ordinary vibratory feedbar L ofthe machine. It therefore follows that by the longitudinal reciprocating movement of the bar J the thread a 'irst locked by one pair of locking-disks H at a point where the thread is feeding up to the threadbar K and then by the other pair H at a point where the thread is feeding away from the said bar K, whileit is released altogether at one of the said points when it is locked at the other. For instance, when the vibratory feed-bar L of the machine is moved to draw off the thread for the next stitch each thread a is released by the air of disks H*-that-is, at a point between t e thread-barK andfeedbar L-while they are locked by the disks H? between the cop T' and thread-bar K, so that the act of drawing oitthe thread draws in the thread-bar K. The thread-bar K is normally free with the exception of weight or brake mechanism which may be adjustable so as to re 'ulate the tension on the threads, and it is rawn inward, as described, i

against the action of said weight or brake.

When the stitch is being made, each threado is locked by the disks H and released by the-disks a out is now locked between the thread-bar K and feed-bar L and released between the thread-bar K and cop Te and the said bar K'is at this time positively returned to its normal position again, so as to draw the same amount of thread ofi' eachcop'l as that taken by thefeed-bar L. As tho-action of the teed-bar L will only draw cit the needle-threads a of those needles which are for the time being in action, it follows that the thread bar h when returned to its normal position will only act on the corresponding threads and draw a fresh supply of the same from the cops T, while the threads of those needles which are not in operation will be unaliected. The needle-threads n can therefore be drawn off by those needles in use without any assistance from or in any way interfering with the threads of those needles which are inoperative and, the changing or the needles in is separate and distinctior every needle, so

that one-is entirely independent of too other.

all the threads is required to let off the 'At the same time only one bar common to threads to form tl ieiloops' and subsequently draw-up the stitches in the fabric, while second bar drawsthe threads from the cops and regulates -the tension on the whole oi the threads. The thread-bar K positively returned to its normal position again, as previously described, by the following mechanism: The, rocking shaft it", widen carries the thread-bar l; and is provi :-d with a Wei hted' arm or brake mechanism of any welrknown construction adapted to regulate the power required to move it angularl is actuated by means of a cam 0 (see.

Fig. 5) on the maindriving-shaft l at the end of the machine. -The cam O actuates, through the intermediaryot a lever O, a tiippet-rod which is carried through openings in the free ends oi arms K on a rocking shaft K and provided with tappets to engage said arms and return the bar K to its normal position again after it has been drawn in by the needle-threads.

The bar-J of the tension mechanism is reciprocated longitudinally, as hereinbetore described bymeans of a cam it on the shaft P, through the intermediary of a cam-lever R .link R", and bell-crank lever it en aging the bar J of the lower tier oi need es,

shown. That of the upper tier is actuated by a second link S, connected to the camlever R, and an arm S link 8, and boll-crank lever S The bell-crank levers R and S are pivoted to brackets R and S, respectively, which also serveto support the endsof the bars J, and the )bll-c'rank'levers provided-with forked/ends to e age with collars B S? onthe respective bars Other means may, however, in some cases be found more convenient for actuating the bars J.

In the process of cmbroidering it is nece sary at times to draw oil a certain amount of needle-thread when the machine is standing, in order that the embroidering frame may be moved some distance to bring a new part of the iabricopposite the needles. For this purpose provision may be made for disconnecting either the bar J from the camlever B or the latter from the cam R, so that the operator can move the bar J and thus release the threads at K or K, as required, the thread-bar K being also at this time moved by the, operator so as to draw off the cops again the amount of thread taken by the said movement of the embroideringframe.

What Iclaim as my invention, and desire to secure by Letters Patent, is- 1. In a multiple embroideringenachine, the combination of the needles, needlebars to carry said needles; a drivingebar adapted stantially as described.

toengage the whole or a portion of the needlebars, means for actuating the drivin -bar,

. two needle-thread-locking devices in connection with each needle, means for compressing and releasing said devices alternately, a thread-bar" which can .be drawn in by the needleEthreads, and means for returning the thread-bar to its normal position again, sub

' 2. In a multiple embroidiering-machine, the combination of a series of needle-bars each provided with a notch to admit the edge of the "driving-bar, a driving-bar having its edge engaging in said openings and formed at intervals with gaps or recesses so disposed that the disengagement of different groups of needle-bars may be effected by adjusting said bar longitudinally, means for actuating said driving-bar adapted to permit of its lon gitudinal adjustment, and means for effecting its longitudinal adjustment, substantially as described.

3. In a multiple embroidering-machine, the combination of a series of needle-bars each provided with two notches, a drivingbar formed with gaps or recesses leaving parts to engage in one of said notches in each of the needle-bars, alocking-bar-formed with ga s or recesses leaving parts to engage in the ot er notch of ea ch needle-bar, means for actuating the driving-bar arranged to permit of its longitudinal adjustment, and means for moving both bars longitudinally, substantially as described.

4. In a multiple embroidering-machine, the combination of the needles, means for reciprocating them, two rieedle-thread-locking devices for each needle-thread, means for com resslng and releasing said devices alternate y, a thrcad-bar over which the thread is carried on its way from ne locking device to the other andwbich can be drawn in by the thread-bar to its normal osition a aiu after being drawn scribed. v 5. In a multiple embroidering-rnachine, the combination of the needles, means for re ciprocating-them, a thread bar which can be drawn in bythe needle-threads,-rneans for positively returning said bar to its normal position again, 'two needle-thread-locking devices in connection with each thread so disposed as to hold each needle-thread at points where it is feeding up to and away from the said thread-bar, and means forcom ressing and releasing said devices alternated substantially as described' l. 6.- In a multipl'e embroidming-maohine, the combination of the needles, means for reciprocating them, a thread-bar which can be drawn in by the needle threads and is then positively returned to its normal position again, means for returning the thread-bar to its normal position, ,two thread-gripping disks to see disposed to hold the needle-thread at a point in, substantially as depairs of needleneedle one pair point where it is feeding away from the thread-bar, and means for compressing one of each pair of said disks and releasing the other of each as described. 7 7: In a multiple embroidering-machine, the combination of the needles, means forreciprocating them, two needle-thread-gri pin disks in connection with each needle situated on opposite sides of a fixed support, mdvable parts situated between the. airs'of gri pingdisks, springs between sai parts an gripping-diskajmans for carrying and reci r0. eating the movable parts, a threadbar w ich can be drawn in bythe needle-threads cooperating with the-said gripping-disks, and

pair alternately; substantially means for returning the thread-bar to itsnormal position again after being drawn in, substantially as described.

, 8. In a multiple-shuttle 'embroidering-machin'e the combination ofthe needles, means for reciprocating them, a series of abutments,

pairs of needle-thread-gri ping disksarranged on each side of said a 'utments, movable arms situated between said. abutments controlling adjacent members of two sepa rate pairs of disks with the exception of those at the ends of the series, springs between said arms and disks, means for'carryin'g and operating said arms, athread-barwhich can be drawn in by the needle-threads cooperating pairs 0 locking-disks one on each side of each i sstoee V abutment, bar provided withi-ntermediate arms, springs disks, means for reciprocating the bar longitudinally, a thread-bar round which each thread is carried on its way from one pair of gripping-disks to the other, said oar being free so that it can be drawn in by the needlethreads at the proper time, and means for returni-ng the thread-bar to its normal position again after being drawn in, substantially as described.

10. In a multiple embroidering-machine the combination with the needle-bars, of springs adapted to cooperate with a fixed part of the machine and trap the threads of those needles which are withdrawn from action, and means for'perrnitting the needle bars to be withdrawn beyond the normal point substantially as described.

11. In i multiple en'ibroideringqnachine;

the combination with the needle-bars, of bearing-hers for supporting them, springs on the needle-bars so disposed as to trap and hold the needle-thread between said sprin'g and one of the hearing-bars when the needlebars are Witlldi'aWn out of action, and a de pressicn in the needle-operating cam to permit of the needle-bars being withdrawn be-' yond the normal point, substantially as described.

12. In a multiple embroidermg-maclnne the combination of the needles, needle-bars fietween said arms and lockingname to to carry said needles each provided with two notches, a driving-bar formed with gaps or recesses leaving parts to engage in one 0 said notches in each .of the needle-bars, a lockingbar formed with gaps or recesses leaving parts to engage in the other notches of those needle-bars which are disconnected from. the driving-bar, means for actuating the driving bar adapted to permit of its longitudinal ad justment, means for moving bothbars longitudmally, two pairs of needle-thread-gnpping disks in connection with each need thread, fixed abutments between each of the two pairs of gripping-disks, movable arms between said abutments, springs between sald disks and arms, a bar to carry said arms,

Ineans for'reciprocating said bar, a thread-- bar round which each thresd is carried on its way from one air of gripping-disks to the other, said bar eing tree at the proper time so that it can be drawn in' by the threads, and means-for returning the thread-bar to its normal position againnftenbeing drawn in, substantially as described.

In testimony whereof I have signed my this speeification in the presence of two subscribing witnesses.

t v CHARLES FARMER. l/Vitnesses:

II. C. SHELDON, J. B Hanson. 

